stupid question and story guys....if there are different kinds of bristle's do they all sting? I stupidly scooped up sand with my hand, and got stung by a good 6 incher! It turned real red, tingled ALOT, I ran it under water (don't know if that was bad or not) couldn't feel anything across my palm for a good twenty minutes! Guess I had to learn the hard way! =)